Q&A on technique and musicality

Hi, everyone. We haven't had a guitar livestream for a while. I was thinking, perhaps we could have a Q and A session either with Martin or Ashley or a guest. It could be on a range of topics such as technique or musicality. I myself, have a range of questions that I need to ask.

For e.g- I want to ask 'how do you play louder (vary the dynamics) without distrubing the balance and tone of fingers, especially of the RH? or

how to play rubato while being on time?